CN111205682A - UV flame-retardant coating containing ternary-in-one flame retardant and preparation method thereof - Google Patents
UV flame-retardant coating containing ternary-in-one flame retardant and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
- C09D5/185—Intumescent paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Abstract
The invention relates to a UV flame retardant coating containing a ternary-in-one flame retardant and a preparation method thereof, and is characterized in that: firstly, adding 10-20% of light-cured resin, 10-20% of flame-retardant system, 10-20% of reactive diluent and 1-3% of auxiliary agent into a sand mill, and grinding for 15-20min at the speed of 1000-1500rpm to obtain slurry; and adding the obtained pigment slurry into the rest of the photo-curing resin solution, adding 1-4% of a photoinitiator and the rest of the active diluent, dispersing for 20-30min in a high-speed dispersion machine, wherein the rotating speed of the high-speed dispersion machine is 300-600rpm, and sieving and discharging to obtain the UV flame-retardant coating containing the three-in-one flame retardant. Its advantage does: because the ternary-in-one flame retardant is used, the formula is simplified, and the flame retardant property and the water resistance of the coating are improved.
Description
Technical Field
The invention relates to the technical field of flame retardant coatings, in particular to a UV flame retardant coating containing a ternary-in-one flame retardant and a preparation method thereof.
Background
The ultraviolet curing coating, referred to as UV coating for short, is a main variety of the photocureable coating and has the advantages of short curing time, low curing temperature, low energy consumption, high efficiency and the like. The UV flame-retardant coating is a UV coating with a flame-retardant function, and is a newly developed flame-retardant coating variety. The invention discloses a Chinese patent application with the publication number of CN103525272A and the name of 'a flame-retardant UV photocureable coating and a preparation method thereof', wherein a flame-retardant system such as tetrabutyl phosphorus chloride, hexabromocyclododecane and the like is added into the coating, so that the coating has good flame-retardant performance. The invention discloses a Chinese patent application with the publication number of CN103788843A and the name of 'high-gloss flame-retardant UV photocureable coating and a preparation method thereof', and the coating obtains good flame-retardant performance by mixing sodium phytate, carbon nano tubes and oligosaccharide. The invention discloses a dust-proof antibacterial fireproof UV photocureable coating and a preparation method thereof, and the dust-proof antibacterial fireproof UV photocureable coating is disclosed in the Chinese invention patent application with the publication number of CN103805034A, wherein nano chitin and aluminum hydroxide are added, so that the coating is stable in dispersion and not easy to settle, the fireproof performance is improved, and the dust-proof antibacterial fireproof UV photocureable coating has excellent water resistance and antibacterial effect, is safe and environment-friendly. The Chinese patent application with the publication number of CN104087152A and the name of 'a flame-retardant UV photocureable coating' has the advantages of high curing rate, environmental protection, high safety, low use cost and the like by adding an aluminum compound and sodium sulfate. The invention discloses a Chinese patent with publication number CN104312423A and name 'a UV curing flame retardant coating', which takes ammonium polyphosphate, ammonium phosphate, urea phosphate, ammonium pyrophosphate or ammonium dihydrogen phosphate, pentaerythritol, tripentaerythritol, mannitol, xylitol, caramel, cellulose and derivatives thereof or dipentaerythritol as a flame retardant system to obtain the UV coating with excellent flame retardant property. The invention discloses a Chinese patent application with the publication number of CN105585942A and the name of 'a UV-cured transparent flame-retardant coating', which takes phosphorus-modified bisphenol epoxy acrylic resin and phosphorus-modified novolac epoxy acrylic resin as film-forming substances, and improves the flame-retardant effect of a coating. The invention discloses a Chinese patent application with the publication number of CN106118331A and the name of 'a fireproof and deformation-preventing environment-friendly UV coating and a preparation method thereof', and the safe and environment-friendly UV flame-retardant coating is prepared by adopting inorganic flame-retardant systems such as coconut shell activated carbon, sericite, alumina, quartz sand and the like. The invention discloses a Chinese patent application with the publication number of CN107652875A and the name of 'UV fire-retardant coating and a preparation method thereof', which takes flame-retardant modified fluorine-containing hyperbranched polyurethane-epoxy acrylate resin copolymer (phosphorus) as an additive, and greatly improves the flame-retardant property of the coating.
In general, melamine, pentaerythritol, ammonium polyphosphate are the most widely used fire protection systems. Because the flame-retardant coating contains halogen, hydroxyl and other groups, the fire resistance, durability, environmental protection and other aspects of the traditional flame-retardant coating are still to be improved. The development of new environmentally friendly flame retardant systems is one of the hot research points.
Disclosure of Invention
The invention aims to provide a UV flame-retardant coating containing a ternary-in-one flame retardant and a preparation method thereof, the formula is simple and environment-friendly, the flame-retardant efficiency is improved, and the water resistance of a coating film is improved.
In order to achieve the purpose, the technical scheme of the UV flame-retardant coating containing the three-in-one flame retardant is realized by the following steps of 10-20% of a flame retardant system, 35-55% of UV light curing resin, 20-34% of a reactive diluent, 1-4% of a photoinitiator and 1-3% of an auxiliary agent in percentage by mass.
In the technical scheme, the UV flame-retardant coating containing the ternary-in-one flame retardant is characterized in that the intumescent flame retardant system comprises the ternary-in-one flame retardant, or the intumescent flame retardant system comprises ammonium polyphosphate or melamine polyphosphate or piperazine pyrophosphate or aluminum hypophosphite and the ternary-in-one flame retardant which are used in a compounding manner, and the mass ratio of the ammonium polyphosphate or melamine polyphosphate or piperazine pyrophosphate or aluminum hypophosphite to the ternary-in-one flame retardant is 5:1-1: 5; wherein:
the structural formula of the ternary-in-one flame retardant is as follows:
in the formula: y is NH or O; x is phenyl, phenoxy, phenylamino and one of phenyl with substituent or phenoxy or phenylamino; r is a straight chain or branched chain alkyl containing 1-18 carbon atoms, and one of a p-phenyl group, a m-phenyl group or an o-phenyl group;
the ammonium polyphosphate is high-polymerization degree crystal II type ammonium polyphosphate, and the polymerization degree n is more than or equal to 1500;
the polymerization degree n of the polyphosphoric acid melamine is more than or equal to 1000.
In the technical scheme, the UV light-cured resin is one or more of acrylate prepolymer, epoxy acrylate, polyurethane acrylate, polyester acrylate and polybutadiene acrylate.
In the technical scheme, the reactive diluent is one or more of a monofunctional acrylate monomer and a difunctional acrylate monomer.
In the technical scheme, the monofunctional acrylate monomer is one or more of isobornyl acrylate, ethoxy ethyl acrylate and 2-phenoxy ethyl acrylate.
In the technical scheme, the difunctional acrylate monomer is one or more of 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, diethylene glycol diacrylate phthalate, neopentyl glycol diacrylate and trimethylolpropane triacrylate.
In the technical scheme, the initiator is one or more of 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl phenyl propyl ketone, 2,4, 6-trimethyl benzoyl diphenyl phosphorus oxide and 2-methyl-1- (4-methylthio) phenyl-2-morpholinyl propyl-1-ketone.
In the technical scheme, the auxiliary agent comprises one or more of a wetting agent, a dispersing agent and a defoaming agent.
In the technical scheme, the preparation method of the UV flame-retardant coating containing the three-in-one flame retardant comprises the following steps: firstly, adding 10-20% of light-cured resin, 15-25% of intumescent flame retardant system, 10-20% of reactive diluent and 1-3% of auxiliary agent into a sand mill, and grinding for 15-20min at the speed of 1000-; adding the obtained slurry into the rest of the photo-curing resin solution, adding 1-4% of a photoinitiator and the rest of the reactive diluent, dispersing for 20-30min in a high-speed dispersion machine, wherein the rotating speed of the high-speed dispersion machine is 300-600r/min, and sieving and discharging to obtain the UV flame-retardant coating containing the three-in-one flame retardant.
Compared with the prior art, the invention has the advantages that: because the ternary-in-one flame retardant is used, the formula is simplified, and the flame retardant property and the water resistance of the coating are improved.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example one
Firstly, accurately weighing 100g of three-in-one flame retardant (FR 1), 500g of acrylate prepolymer, 0.3g of wetting agent, 0.9g of dispersing agent and 0.1g of defoaming agent, adding the mixture into a sand mill, and grinding the mixture for 20min at 1000r/min to obtain slurry; and transferring the obtained slurry into a high-speed dispersion machine, slowly adding 180g of isobornyl acrylate, 180g of 1, 6-hexanediol diacrylate, 25g of 1-hydroxycyclohexyl phenyl ketone and 5g of a leveling agent at the rotating speed of the high-speed dispersion machine under 300r/min, dispersing for 20min until the system is uniform, filtering and discharging to obtain the UV flame-retardant coating containing the three-in-one flame retardant. The oxygen index of the coating prepared by the coating is 25.0%, and the coating does not have the phenomena of layer formation, foaming and falling after being soaked in cold water for 72 hours.
Example two
Firstly, accurately weighing 150g of melamine polyphosphate (MPP), 50g of three-in-one flame retardant (FR 2), 300g of acrylate prepolymer, 200g of polyester acrylate, 0.2g of wetting agent, 0.7g of dispersing agent and 0.2g of defoaming agent, and adding the materials into a sand mill to grind for 15min at 1500rpm to obtain slurry; and transferring the obtained slurry into a high-speed dispersion machine, slowly adding 100g of ethoxy ethyl acrylate, 100g of tripropylene glycol diacrylate, 100g of diethylene glycol diacrylate phthalate, 20g of 2,4, 6-trimethylbenzoyl diphenyl phosphorus oxide, 1g of defoaming agent and 5g of flatting agent at the rotating speed of the high-speed dispersion machine of 600r/min, dispersing for 20min until the system is uniform, filtering and discharging to obtain the UV type flame retardant coating containing the three-in-one flame retardant. The oxygen index of the coating prepared by the coating is 26.5%, and the coating does not have the phenomena of layer formation, foaming and falling after being soaked in cold water for 72 hours.
EXAMPLE III
Firstly, accurately weighing 100g of piperazine pyrophosphate (PPAP), 100g of three-in-one flame retardant (FR 3), 400g of polyurethane acrylate, 0.3g of wetting agent, 0.9g of dispersing agent and 0.2g of defoaming agent, and adding the weighed materials into a sand mill to grind for 18min at 1200rpm to obtain slurry; and transferring the obtained slurry into a high-speed dispersion machine, slowly adding 120g of ethoxy ethyl acrylate, 230g of dipropylene glycol diacrylate, 15g of 2-methyl-1- (4-methylthio) phenyl-2-morpholinopropyl-1-ketone, 0.5g of antifoaming agent and 10g of leveling agent into the high-speed dispersion machine at the rotating speed of 600r/min, dispersing for 20min until the system is uniform, filtering and discharging to obtain the UV type flame retardant coating containing the three-in-one flame retardant. The oxygen index of the coating prepared by the coating is 28.5%, and the coating does not have the phenomena of layer formation, foaming and falling after being soaked in cold water for 72 hours.
Example four
The UV flame-retardant coating is prepared by accurately weighing 160g of aluminum hypophosphite, 40g of ternary-in-one flame retardant (FR 4), 300g of acrylate prepolymer, 150g of epoxy acrylate, 0.3g of wetting agent, 0.9g of dispersing agent and 1g of defoaming agent, and adding the weighed materials into a sand mill to grind at 1000rpm for 18min to obtain slurry; and transferring the obtained slurry into a high-speed dispersion machine, slowly adding 100g of 2-phenoxyethyl acrylate, 150g of neopentyl glycol diacrylate, 100g of trimethylolpropane triacrylate, 30g of 2-hydroxy-2-methyl propiophenone, 1g of defoaming agent and 10g of leveling agent at the rotating speed of the high-speed dispersion machine under 400r/min, dispersing for 25min until the system is uniform, filtering and discharging to obtain the UV type flame retardant coating containing the three-in-one flame retardant. The oxygen index of the coating prepared by the coating is 26.5%, and the coating does not have the phenomena of layer formation, foaming and falling after being soaked in cold water for 72 hours.
EXAMPLE five
Firstly, accurately weighing 150g of piperazine pyrophosphate (PPAP), 30g of three-in-one flame retardant (FR 5), 150g of acrylate prepolymer, 150g of aminoacrylate, 0.3g of wetting agent, 0.9g of dispersing agent and 1g of defoaming agent, adding the weighed materials into a sand mill, and grinding the materials at 1200rpm for 15min to obtain slurry; and transferring the obtained slurry into a dispersion cylinder, slowly adding 250g of tripropylene glycol diacrylate, 100g of diethylene glycol diacrylate phthalate, 150g of neopentyl glycol diacrylate, 25g of 2-hydroxy-2-methyl propiophenone, 1g of defoaming agent and 10g of leveling agent at the rotating speed of a high-speed dispersion machine under 500r/min, dispersing for 20min until the system is uniform, filtering and discharging to obtain the UV type flame retardant coating containing the three-in-one flame retardant. The oxygen index of the coating prepared by the coating is 26.5%, and the coating does not have the phenomena of layer formation, foaming and falling after being soaked in cold water for 72 hours.
EXAMPLE six
Firstly, accurately weighing 30g of piperazine pyrophosphate (PPAP), 120g of three-in-one flame retardant (FR 6), 300g of polyurethane acrylate, 0.2g of wetting agent, 0.8g of dispersing agent and 0.2g of defoaming agent, and adding the weighed materials into a sand mill to grind for 15min at 1200rpm to obtain slurry; and transferring the obtained slurry into a high-speed dispersion machine, slowly adding 220g of ethoxy ethyl acrylate, 280g of dipropylene glycol diacrylate, 15g of 2-methyl-1- (4-methylthio) phenyl-2-morpholinopropyl-1-ketone, 0.5g of antifoaming agent and 10g of flatting agent into the high-speed dispersion machine at the rotating speed of 450r/min, dispersing for 30min until the system is uniform, filtering and discharging to obtain the UV flame retardant coating containing the three-in-one flame retardant. The oxygen index of the coating prepared by the coating is 27.0%, and the coating does not have the phenomena of layer formation, foaming and falling after being soaked in cold water for 72 hours.
EXAMPLE seven
Firstly, accurately weighing 60g of ammonium polyphosphate (APP), 120g of three-in-one flame retardant (FR 6), 400g of acrylate prepolymer, 0.3g of wetting agent, 0.9g of dispersing agent and 0.2g of defoaming agent, adding the mixture into a sand mill, and grinding at 1000rpm for 20min to obtain slurry; and transferring the obtained slurry into a high-speed dispersion machine, slowly adding 150g of isobornyl acrylate, 150g of 1, 6-hexanediol diacrylate, 25g of 1-hydroxycyclohexyl phenyl ketone and 5g of a leveling agent at the rotating speed of the high-speed dispersion machine under 300r/min, dispersing for 30min until the system is uniform, filtering and discharging to obtain the UV flame-retardant coating containing the ternary-in-one flame retardant. The oxygen index of the coating prepared by the coating is 26.0%, and the coating does not have the phenomena of layer formation, foaming and falling after being soaked in cold water for 72 hours.
Example eight
Firstly, accurately weighing 50g of melamine polyphosphate (MPP), 150g of three-in-one flame retardant (FR 3), 200g of acrylate prepolymer, 200g of polyester acrylate, 0.2g of wetting agent, 0.8g of dispersing agent and 0.2g of defoaming agent, and adding the materials into a sand mill to grind for 20min at 1500rpm to obtain slurry; and transferring the obtained slurry into a high-speed dispersion machine, slowly adding 150g of ethoxy ethyl acrylate, 100g of tripropylene glycol diacrylate, 100g of diethylene glycol diacrylate phthalate, 20g of 2,4, 6-trimethylbenzoyl diphenyl phosphorus oxide, 1g of defoaming agent and 5g of flatting agent at the rotating speed of the high-speed dispersion machine of 600r/min, dispersing for 25min until the system is uniform, filtering and discharging to obtain the UV flame-retardant coating containing the three-in-one flame retardant. The oxygen index of the coating prepared by the coating is 28.5%, and the coating does not have the phenomena of layer formation, foaming and falling after being soaked in cold water for 72 hours.
Comparative example
Accurately weighing 300g of acrylate prepolymer, 300g of amino acrylate, 150g of tripropylene glycol diacrylate, 100g of diethylene glycol diacrylate phthalate, 150g of neopentyl glycol diacrylate, 30g of 2-hydroxy-2-methyl propiophenone, 1g of defoaming agent and 5g of flatting agent, adding the materials into a dispersion cylinder, dispersing for 20min at 600r/min under 300 f/min until the system is uniform, filtering and discharging to obtain the common UV type coating. The oxygen index of the coating prepared by the coating is 21%, and the coating does not have the phenomena of layering, foaming and falling after being soaked in cold water for 48 hours.
The flame retardant performance and the water resistance of the UV flame retardant coating containing the three-in-one flame retardant prepared in the first to eighth examples and the common solvent-based coating prepared in the comparative example are respectively determined according to the standards GB/T2406.2-2009 and GB/T1733-1993.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and these embodiments are within the scope of the invention.
Claims (9)
1. The UV flame-retardant coating containing the three-in-one flame retardant is characterized by comprising 10-20% of a flame retardant system, 35-55% of UV light-cured resin, 20-34% of a reactive diluent, 1-4% of a photoinitiator and 1-3% of an auxiliary agent in percentage by mass.
2. The UV flame retardant coating containing the three-in-one flame retardant according to claim 1, characterized in that the flame retardant system comprises the three-in-one flame retardant, or the flame retardant system comprises ammonium polyphosphate or melamine polyphosphate or piperazine pyrophosphate or aluminum hypophosphite which is compounded with the three-in-one flame retardant, and the mass ratio of the ammonium polyphosphate or melamine polyphosphate or piperazine pyrophosphate or aluminum hypophosphite to the three-in-one flame retardant is 5:1-1: 5; wherein:
the structural formula of the ternary-in-one flame retardant is as follows:
in the formula: y is NH or O; x is phenyl, phenoxy, phenylamino and one of phenyl with substituent or phenoxy or phenylamino; r is a straight chain or branched chain alkyl containing 1-18 carbon atoms, and one of a p-phenyl group, a m-phenyl group or an o-phenyl group;
the ammonium polyphosphate is high-polymerization degree crystal II type ammonium polyphosphate, and the polymerization degree n is more than or equal to 1500;
the polymerization degree n of the polyphosphoric acid melamine is more than or equal to 1000.
3. The UV flame retardant coating containing the three-in-one flame retardant according to claim 1, wherein the UV light-cured resin is one or more of acrylate prepolymer, epoxy acrylate, polyurethane acrylate, polyester acrylate and polybutadiene acrylate.
4. The UV flame retardant coating containing the three-in-one flame retardant according to claim 1, wherein the reactive diluent is one or more of a monofunctional acrylate monomer and a difunctional acrylate monomer.
5. The UV flame retardant coating containing the three-in-one flame retardant according to claim 4, wherein the monofunctional acrylate monomer is one or more of isobornyl acrylate, ethoxyethyl acrylate and 2-phenoxyethyl acrylate.
6. The UV flame retardant coating material containing a three-in-one type flame retardant according to claim 4, wherein said difunctional acrylate monomer is one or more selected from the group consisting of 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, diethylene glycol diacrylate phthalate, neopentyl glycol diacrylate, and trimethylolpropane triacrylate.
7. The UV flame retardant coating containing the three-in-one type flame retardant according to claim 1, wherein the photoinitiator is one or more of 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl phenyl propyl ketone, 2,4, 6-trimethyl benzoyl diphenyl phosphorus oxide and 2-methyl-1- (4-methylthio) phenyl-2-morpholinyl propyl-1-ketone.
8. The UV flame retardant coating containing the three-in-one flame retardant according to claim 1, wherein the auxiliary agent comprises one or more of a wetting agent, a dispersing agent and a defoaming agent.
9. The method for preparing the UV flame retardant coating containing the three-in-one type flame retardant according to claim 1, characterized by comprising the steps of: firstly, adding 10-20% of light-cured resin, 10-20% of flame-retardant system, 10-20% of reactive diluent and 1-3% of auxiliary agent into a sand mill, and grinding for 15-20min at the speed of 1000-1500rpm to obtain slurry; and adding the obtained pigment slurry into the rest of the photo-curing resin solution, adding 1-4% of a photoinitiator and the rest of the active diluent, dispersing for 20-30min in a high-speed dispersion machine, wherein the rotating speed of the high-speed dispersion machine is 300-600rpm, and sieving and discharging to obtain the UV flame-retardant coating containing the three-in-one flame retardant.
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